* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body,
html {
  font-size: 2vw;
}
body {
  display: flex;
  flex-direction: column;
}
main {
  flex: 1;
  overflow: auto;
}
img {
  display: block;
}
a,
u {
  text-decoration: none;
  color: black;
}
ul li {
  list-style: none;
}
input,
select {
  outline: none;
}
h1,
h2,
h3,
h4,
h5,
h6,
i,
b,
em {
  font-style: normal;
  font-weight: normal;
}
.clear:after {
  content: '';
  display: block;
  clear: both;
  width: 0;
  height: 0;
  overflow: hidden;
}
